公开(公告)号：US20070213174A1

公开(公告)日：2007-09-13

申请号：US11372921

申请日：2006-03-10

申请人： Goro Tamai ,  William Aldrich ,  Mark Zerbini

发明人： Goro Tamai ,  William Aldrich ,  Mark Zerbini

IPC分类号： F16H61/38

CPC分类号： B60W20/00 ,  B60K6/485 ,  B60W10/10 ,  B60W10/30 ,  F16H57/0434 ,  F16H61/0025 ,  F16H61/0031 ,  Y02T10/6226 ,  Y10T477/23 ,  Y10T477/631

摘要： A method and article of manufacture is provided to control an automatic transmission which includes a hydraulic fluid circuit having an electrically-driven auxiliary hydraulic pressure pump. It includes determining the internal combustion engine is shut off during vehicle operation, and monitoring fluidic pressure at a plurality of locations in the hydraulic circuit. Operation of the electrically-driven auxiliary hydraulic pressure pump is commanded to an elevated voltage level when the engine is shut off and the fluidic pressures fail to register substantially proper pressure levels. It includes discontinuing operation of the electrically-driven auxiliary hydraulic pressure pump when the engine is subsequently commanded on, or when an elapsed measure of time has passed, or when the monitored fluidic pressures register substantially proper pressure levels.

摘要翻译： 提供了一种制造方法和控制自动变速器，该自动变速器包括具有电动辅助液压泵的液压回路。 其包括在车辆操作期间确定内燃机被切断，以及监测液压回路中的多个位置处的流体压力。 当发动机关闭时，电动辅助液压泵的操作被指示为升高的电压水平，并且流体压力不能注册基本上适当的压力水平。 它包括当发动机随后被命令时或当经过的时间经过时，或者当所监视的流体压力基本上达到适当的压力水平时停止电动辅助液压泵的操作。